NDLI: Dual-band bandpass Wilkinson power divider of controllable bandwidths

Content Provider	IET Digital Library
Author	Pang, Yi Hsin Li, Zhong He
Abstract	In this reported work, quarter-wavelength stepped-impedance resonators with K inverters have been employed to realise a dual-band bandpass Wilkinson power divider (WPD). The individual bandwidth of each passband can be controlled with the dualband resonators and K inverters. A systematic design approach of the power divider is provided with the aid of the even–odd mode analysis and verified by circuit simulation. A 2.45/5.8 GHz WPD with a Chebyshev response has also been implemented for validation. The measured fractional bandwidth of 20 dB return loss (1/∣S 11∣) is 7.0%/4.1% which is consistent with the theoretical design. In addition to the 3 dB power division, an insertion loss of 0.8/1.2 dB is obtained. Isolation of 20.1/19 dB at the centre frequency is also achieved. Full-wave simulated data are also presented and show good agreement with measured results. Compared with other dual-band bandpass power dividers, the proposed circuit exhibits better impedance matching and bandwidth.
Starting Page	537
Ending Page	539
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 7, Apr (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2015.3645
Journal	Electronics Letters
Publisher Date	2016-03-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Chebyshev Response Circuit Simulation Dualband Bandpass Wilkinson Power Divider Dualband Quarter-wavelength Stepped-impedance Resonator Even-odd Mode Analysis Frequency 2.45 GHz Frequency 5.8 GHz Gain 3 DB Impedance Matching Inverter Invertors Loss 0.8 DB Loss 1.2 DB Loss 19 DB Loss 20 DB Loss 20.1 DB Power Divider Power Electronics Power Supply Resonator Supervisory Circuit Waveguide And Microwave Transmission Line Component WPD
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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